Alert archive / Mississippi / Flash Flood Warnings in 2003

Flash Flood Warning 13, NWS Jackson, MS

February 21, 20034 counties in Mississippi

NWS Jackson, MS issued this flash flood warning at Feb 21, 2003, 5:48 PM CST for 4 counties in Mississippi. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Feb 21, 2003, 5:48 PM CST (23:48 UTC)
Expired: Feb 22, 2003, 12:00 AM CST
In force: 6 hr
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

Counties Franklin County, MS, Jefferson Davis County, MS, Lawrence County, MS, Lincoln County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.8 hours before the alert went out and 159 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 362 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 469 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 380 m²/s²
0-3 km storm-relative helicity: 504 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KJAN 212357
FFWJAN
MSC037-065-077-085-220600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
548 PM CST FRI FEB 21 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FRANKLIN COUNTY IN SOUTHWEST MISSISSIPPI
  LINCOLN COUNTY IN SOUTH CENTRAL MISSISSIPPI
  LAWRENCE COUNTY IN SOUTH CENTRAL MISSISSIPPI
  JEFFERSON DAVIS COUNTY IN SOUTH CENTRAL MISSISSIPPI

* UNTIL MIDNIGHT CST

* AT 548 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED CONTINUAL 
DEVELOPMENT OF SHOWERS AND THUNDERSTORMS OVER SOUTHERN 
MISSISSIPPI...MOVING NORTHEAST AT 20 MPH.

RADAR ESTIMATED RAINFALL AMOUNTS BETWEEN 4 TO 7 INCHES SINCE THIS 
MORNING WITH RECENT HOURLY RAINFALL RATES BETWEEN ONE HALF AND 1 
INCH. ADDITIONAL THUNDERSTORMS ARE DEVELOPING TO THE SOUTH AND WILL 
MOVE NORTHWARD OVER THE AREA BRINGING AN ADDITIONAL 2 INCHES OF 
RAINFALL THROUGH MIDNIGHT.

THERE HAVE BEEN NUMEROUS REPORTS OF FLOODING IN THE REGION SINCE 
THIS MORNING AND THE ADDITIONAL RAINFALL WILL CAUSE CONDITIONS TO 
FURTHER DETERIORATE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.

LAT...LON 3137 9111 3140 9012 3151 8963 3162 8979
          3176 8981 3166 9048 3161 9060 3159 9111

$$

GAGAN

2 follow-up statements

000 
WGUS74 KJAN 220126
FFSJAN
MSC037-065-077-085-220220-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
720 PM CST FRI FEB 21 2003

FLASH FLOOD WARNING REMAINS IN EFFECT FOR...

FRANKLIN COUNTY IN SOUTHWEST MISSISSIPPI
LINCOLN COUNTY IN SOUTH CENTRAL MISSISSIPPI
LAWRENCE COUNTY IN SOUTH CENTRAL MISSISSIPPI
JEFFERSON DAVIS COUNTY IN SOUTH CENTRAL MISSISSIPPI

UNTIL MIDNIGHT CST.

AT 720 PM...WEATHER SERVICE DOPPLER RADAR INDICATED THE HEAVIEST 
RAINFALL WAS OVER FRANKLIN AND LINCOLN COUNTIES...MOVING TO THE 
NORTHEAST AT 35 MPH.

A HAM RADIO OPERATOR REPORTED 1 TO 3 FEET OF WATER OVER ROADS IN 
PRENTISS IN JEFFERSON DAVIS COUNTY.

HEAVY RAINFALL WILL CONTINUE TO THE MOVE OVER THE WARNED AREA 
THROUGH MIDNIGHT. 

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODS AND FLASH FLOODS.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT 
TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.

$$

GAGAN

000 
WGUS74 KJAN 220528
FFSJAN
MSC037-065-077-085-220615-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1120 PM CST FRI FEB 21 2003

FLASH FLOOD WARNING WILL EXPIRE AT MIDNIGHT CST FOR...

FRANKLIN COUNTY IN SOUTHWEST MISSISSIPPI
LINCOLN COUNTY IN SOUTH CENTRAL MISSISSIPPI
LAWRENCE COUNTY IN SOUTH CENTRAL MISSISSIPPI
JEFFERSON DAVIS COUNTY IN SOUTH CENTRAL MISSISSIPPI

AT 1115 PM CST...DOPPLER RADAR INDICATED A BAND OF SHOWERS AND 
THUNDERSTORMS FROM PRENTISS TO OAK VALE IN JEFFERSON DAVIS AND 
LAWRENCE COUNTIES.  THE RAIN HAS ENDED FARTHER WEST IN FRANKLIN AND 
LINCOLN COUNTIES.  

FRANKLIN COUNTY SHERIFFS OFFICE REPORTED FLOODING IN LOW LYING AREAS.

LINCOLN COUNTY CIVIL DEFENSE REPORTED FLOODING ON 8 ROADS IN 
BROOKHAVEN...WITH A TOTAL OF 50 ROADS IN THE COUNTY. 

LAWRENCE COUNTY SHERIFFS OFFICE REPORTED FLOODING ON SEVERAL AREA 
ROADS INCLUDING THE TOWNS OF OAK VALE...TOPEKA...AND MONTICELLO.

JEFFERSON DAVIS EMERGENCY MANAGEMENT REPORTED MULTIPLE STREETS 
FLOODED IN THE COUNTY.  

FLOOD WATERS WILL LIKELY CONTINUE FOR A TIME OVERNIGHT.  
HOWEVER...UNLESS RENEWED HEAVY RAINS DEVELOP...THE FLASH FLOOD 
WARNINGS WILL NOT BE REISSUED.  

$$

CRAVEN

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 21, 6:06 AM CST	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis	39 min
Feb 21, 9:00 AM CST	Flash Flood Warning	JAN	Jefferson Davis, Lawrence, Lincoln	3 hr
Feb 21, 11:30 AM CST	Flash Flood Warning	JAN	Covington	3 hr
Feb 21, 12:00 PM CST	Flash Flood Warning	JAN	Jefferson Davis, Lawrence, Lincoln	6 hr
Feb 21, 12:17 PM CST	Flash Flood Warning	JAN	Franklin	6 hr
Feb 21, 12:43 PM CST	Severe Thunderstorm Warning	JAN	Franklin	37 min
Feb 21, 12:57 PM CST	Severe Thunderstorm Warning	JAN	Jefferson	43 min
Feb 21, 1:55 PM CST	Flash Flood Warning	JAN	Claiborne, Jefferson	6 hr
Feb 21, 2:12 PM CST	Flash Flood Warning	JAN	Copiah, Simpson, Smith	6 hr
Feb 21, 3:18 PM CST	Flash Flood Warning	JAN	Covington	3 hr
Feb 21, 4:51 PM CST	Flash Flood Warning	JAN	Jones	6 hr
Feb 21, 5:01 PM CST	Flash Flood Warning	JAN	Lamar, Marion	6 hr

Nearby

Flash Flood Warnings in Mississippi, 2003 Every flash flood warning in 2003

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.